Features
   * The new functions mbedtls_asn1_free_named_data_list() and
     mbedtls_asn1_free_named_data_list_shallow() simplify the management
     of memory in named data lists in X.509 structures.
New deprecations
   * Deprecate mbedtls_asn1_free_named_data().
     Use mbedtls_asn1_free_named_data_list()
     or mbedtls_asn1_free_named_data_list_shallow().